Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
DuraFlex Fireplace Services in Severna Park: What to Know First
We provide independent DuraFlex fireplace services in Severna Park, from gas fireplace tune-ups to firebox repairs and insert conversions. Most DuraFlex jobs we book are completed in a single visit, and we quote the full price before any work starts. We’re not the cheapest outfit in Anne Arundel County, and we don’t try to be - we charge enough to do the job with the right parts and stand behind it for 90 days.
This page is for Severna Park homeowners who already know they have a DuraFlex component in their fireplace system and need a technician who understands how these products age in our local climate. If you’re not sure what you’ve got, we’ll identify it during inspection. Call (443) 464-2560 - a live person answers, 24 hours a day.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SW stainless liners crack at the tee body in wood-burning setups. We see this most in Severna Park homes built in the 1980s and 1990s along the B&A Trail corridor, where homeowners burn oak and hickory heavy in tannic acid. The tee body sees the worst thermal cycling, and after 15-20 years the stainless can work-harden and split. We cut out the failed section and splice in a new DuraFlex tee with proper expansion clearance, not a generic patch.
- DuraFlex AL aluminum liners sag in gas fireplace inserts after a decade. The lighter aluminum alloy wasn’t designed for the sustained radiant heat of modern high-efficiency gas inserts. We find the sag point with a camera, then replace with DuraFlex SW or a compatible professional-grade stainless alternative - never another aluminum run that’ll fail the same way.
- DuraFlex relining collars leak at the top plate. The factory silicone seal degrades faster in Severna Park’s salt-air environment, especially within a mile of the Magothy River or the Chesapeake. Water stains on the firebox ceiling are the tell. We reseat the collar with high-temp sealant rated for marine exposure and add a Gelco or Famco cap with proper overhang.
- DuraFlex transition fittings separate at the fireplace insert connection. The slip-fit joint loosens from thermal expansion cycles, particularly in homes that cycle the fireplace on and off frequently. Our fix is a mechanical-lock adapter with a stainless hose clamp rated for chimney temperatures - not the friction-fit that came loose in the first place.
- DuraFlex smooth-wall liners accumulate glazed creosote in shoulder seasons. The slick interior that drafts so well in January becomes a condensation surface in October and April when flue gas temperatures drop below the dew point. We rotary-clean with polypropylene brushes sized to the exact DuraFlex diameter, then verify with a Level-2 camera inspection so you see the bore, not just take our word.
Our DuraFlex Fireplace Services Process
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Call and schedule. A live person answers at (443) 464-2560, any hour. We ask what you’re burning, what you’re seeing, and whether you know your liner model. If you don’t, we’ll sort it on site.
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Arrival and inspection. Our technician arrives in a marked truck, uniformed, background-checked. We run a Level-2 camera inspection from top to bottom, photographing every joint, tee, and transition. You see the images on a tablet as we go. Russell Haines has a rule: “If the chimney is not safe to use, I will say so. If it is, I will say that too.”
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Diagnosis and parts call. We identify the DuraFlex series and the exact failure. If OEM DuraFlex is available and cost-justified, we use it. If a professional-grade aftermarket from Olympia Chimney or Copperfield matches the spec at better value, we explain the trade-off and let you decide. No parts ordered without your okay.
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Repair and testing. We complete most DuraFlex fireplace repairs in one visit. After installation, we pressure-test or smoke-test per the application, verify draft with a manometer, and run the camera again to confirm the fix.
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Documentation and guarantee. You get photos, a plain-English report, and a written invoice matching the upfront quote exactly. Every job carries our 90-Day Done Right Promise - if it’s not right, we make it right, no paperwork, no arguing.
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Cleanup and follow-up. We leave the hearth area cleaner than we found it. Our office calls within two weeks to confirm satisfaction. If something’s not sitting right, we dispatch a technician.
What DuraFlex Fireplace Services Costs in Severna Park
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex gas fireplace tune-up | $89-$175 | Insert accessibility, whether pilot assembly needs cleaning or replacement |
| DuraFlex liner section repair (tee or collar) | $340-$680 | Height of chimney, need for scaffolding, OEM vs. quality aftermarket part |
| DuraFlex liner replacement (gas insert) | $1,800-$3,200 | Linear feet, number of offsets, termination type |
| Firebox repair with DuraFlex-compatible refractory panels | $450-$950 | Panel size, whether surrounding brick needs tuckpointing |
| Fireplace conversion (wood to gas, DuraFlex liner) | $2,400-$4,500 | Gas line routing, insert model, venting configuration |
These are real Severna Park price ranges based on jobs we’ve completed in neighborhoods from Chartwell to Olde Severna Park. The exact number depends on what we find. We give you that number before any work begins, and it’s the number on the invoice. Estimates are free - call (443) 464-2560.
Why Severna Park Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We’ve been working chimneys in Severna Park for over two decades, including the older wood-burning fireplaces along the B&A Trail corridor that see heavy use every winter. Russell Haines started this company in 1984 with a straightforward idea: tell the customer what you found, what it means, and what it will cost. That hasn’t changed.
Our 90-Day Done Right Promise is in writing, not a verbal maybe. Our technicians are background-checked, uniformed, and trained on DuraFlex, HeatShield, Gelco, and the other professional-grade brands we stock. Most jobs finish in one visit. And when you call (443) 464-2560, a live person answers - not a callback queue, not an app, not tomorrow morning.
We’re also the shop that tells you when work can wait. If your DuraFlex liner has three good seasons left and the firebox crack is cosmetic, we’ll say so. A company that plans to be in Severna Park thirty years from now doesn’t profit from one-time burns.
FAQs
No - professional servicing by an independent technician does not void your DuraFlex warranty, provided we use compatible parts and follow installation guidelines. As an independent DuraFlex service provider, we document every repair with photos and part numbers so you have a record if a warranty question ever arises. Call (443) 464-2560 if you’d like us to review your warranty status before booking.
DuraFlex transition fittings, tee bodies, and top assemblies are engineered to specific tolerances; mixing brands at critical joints often causes leaks or separation within a few seasons. We stock DuraFlex OEM where it matters for safety and warranty, and we use professional-grade aftermarket from Olympia Chimney or Copperfield only where the spec matches exactly. We’ll show you the difference and let you choose.
If the damage is localized - a cracked tee, a separated collar, a single offset failure - repair is usually the sound choice. If we find three or more failure points, or if the liner is aluminum and you’re converting to a hotter-burning appliance, replacement pays for itself in safety and longevity. We make the recommendation after the camera inspection, never before.
Common DuraFlex SW tees, collars, and adapters are on our trucks or available next business day from our Annapolis-area supplier. Specialty sizes or AL-to-SW conversion kits may take 3-5 business days. We don’t book the repair until we confirm parts availability, so you’re not left with a cold hearth and a pending appointment.
Glazed creosote in wood-burning systems and degraded seals in gas setups both progress silently. The risk is a chimney fire or carbon monoxide infiltration, not a sudden bill. In Severna Park’s older homes with original DuraFlex liners installed in the 1990s, we’ve found liners that looked fine from the hearth but were perforated above the roofline. The camera inspection is what catches it. Call (443) 464-2560 for a free estimate - the seasonal tune-up starts at $89.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Severna Park and nearby areas.





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